A couple of decent size bets would swing it, it's fairly common. Happened here recently in Australia by guys fixing greyhound race payouts. It could have something as simple as a couple of Brewsters relatives/crew putting a couple of big bets on. Or as the article said, if you're only getting 10c back for every dollar bet on Wlad, it's likely most people punted the other way. Nah, Brewster was done by the time of the rematch, and Wlad was miles better than in the first fight. Rematch means not much IMO to this fight. It's about as likely as him being poisoned.
Something wrong in that fight. I don't know what it is but there there was definitely something wrong in that fight.